د ثروت الشيمي

10. Cause
*bovine herps virus
-it is highly infectious disease of cattle & buffaloes
*ch` clinically by:
-rhinotracheitis -conjunctivitis
-fever -encephalitis -abortion
***highly fatal in calves less than 2 weeks of age
Clinical signs:
1-respiratory form:
●fever (40-42 c) , shallow rapid respiration
●persistant cough & dyspnoea
●serous to mucopurulent nasal discharge
●hyperemia & hemorrhagic focal necrosis of nasal mucosa
(red nose)ْ

11. 2-occular form:
●bilateral conjunctivitis ( congestion & swelling)
●keratoconjunctivitis – corneal opacity (at corneo-
sclearal junction)
●serous to mucopurulent occular discharge
3-enteric form (in newly born calves)
●fever , anorexia , dullness...............etc
●erosion & ulceration of oral cavity
●diarrhea
4-abortion in 5-9 month of pregnancy
5-encephalitis ( in calves less than 6 month of age) → in
co-ordination , excitment , bellowing , convulsion &
blindness
6-infectious valvo-vaginitis (IPV(
7-infectious pustular balanopothitis(IPB(

12. Treatment
Broad spectrum antibiotic & symptomatic treatment for the
respiratory signs
Vaccination
a-modified live attinuated vaccine:
-contraindicated in pregnant animal ( cause abortion)
-given by I/M injection
-given to calves at 6 m` of age
b-killed vaccine:
-avilable in combination with PI3 , B.V.D & resp.synctial virus
-given to calves → I/M → 2 dose ( 5 ml in each dose)
→ 2 weeks interval